does the device prevent installing wifi cards not-approved by the vendor?

yes(see the details inside the description entry)

year of commercialization:

2006

compatibility with free software:

C-silver

tested on:

Trisquel 5.5 Brigantia Trisquel 6.0 Toutatis

tested with the following kernel libre:

3.0.0-24-generic-pae

video card model:

8086:27a2 (works with 3D acceleration)

wifi model:

8086:4227 (it does not work)

webcam model:

(there is no webcam)

Description:

Wifi card whitelist

All thinkpads have a Wifi card whitelist at the BIOS level that prevent installing certain WiFi cards. The restriction can be bypassed with a BIOS modification: either installing Libreboot, Coreboot or editing the official Lenovo/IBM BIOS.

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